下一個節目, 三兄弟遊壁

C.L.Chan

下一個節目, 三兄弟遊壁,  3 Brothers visiting Stright Wall, UT 2020 11 25, 13h16m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam, Capture withFireCapture, Shoot at Gamma=100, Gain=35, Expo= 0.23ms/frame, avi format, stackand process 25% best frames in 1778 frames by free Software AutoStakkert 3,wavelet with RegiStax V.6, Final touch by Microsoft Photo software. Atmosphericcondition: Transparent: 8/10, Seeing : 7/10. Equipment borrowed from Mr. Ng.The photo was taken at Kennedy Town 堅尼地城, HongKong.